【High-Quality Silicone】 Made of flexible, durable, and abrasion-resistant premium silicone, allowing for long-term use. Features a sturdy 316 stainless steel buckle for extended lifespan. 【Buoyancy Control】 Enables divers to maintain optimal buoyancy and achieve proper buoyancy control, ensuring balance and stability underwater. 【Adjustable Length】 Adjustable to fit your needs; Length: 1.3 meters, Width: 4.4cm; Thickness: 0.4cm 【Multi-Purpose Use】 Suitable for various water sports such as freediving and snorkeling, enhancing underwater safety and performance, and allowing for easy diving enjoyment.